-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Somebody in the thread at some point said:
|> They're ~32R apparently, with 33R in series (R4405 / R4407) so it is ~65R. | Yep, so *no* standard replacement headphone will fit. No Motorola, no Sony, | just OM-headset (as long as at least these have 600~1000Ohm for f0=300~400Hz!) | No use to tell in wiki about the standard pinout of connector. I googled around but I didn't find any information about what is common. ~ Yeah it would be better to be compatible for sure, but we do ship 32R headset. |> So the impact is we lost some bass end... maybe not a noticeable amount |> to what we would have with 100u due to the transducer performance. | | We have a f0 of ~160Hz WITH OPEN CIRCUIT, just due to the 1k pulldowns! | With a 1000 Ohm headset, this will be 320Hz for -3dB!!! | That's noticeable for sure. It's plain crap. We don't ship 1K impedence headset, since we didn't target it we just have to look after what we did ship with. |> there's no room for adjusting the value of the caps on the A5 or A6 PCB |> then I would just accept this. | At very very least we can increase the thing to 4.7u, it fits on current PCB. Allen can say yes or no to this, but I think first he would try it both ways. | Think one of my first tasks in .tw will be retrofitting the 100uF and compare | the sound. Maybe i can do a nice foto footage for the wiki, so anybody with | good soldering skills can do the same, if they are interested in HiFi. If I had a clue about the ALSA profile end I would try it for you. - -Andy -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iEYEARECAAYFAkfzitsACgkQOjLpvpq7dMoScwCggqG2GnoZJXS/tqagQGL1H0CZ TyoAoICa/tBlmPYpnI2vqQBlqqroOnX3 =VdZg -----END PGP SIGNATURE-----
